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view default_arg.m @ 389:42c89b5eedc0 feature/beams

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Add borrowing constants for D2 operators in D4Variable
author Jonatan Werpers <jonatan@werpers.com>
date Tue, 10 Jan 2017 17:31:28 +0100
parents 48b6fb693025
children
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function default_arg(s, val)
    if evalin('caller',sprintf('~exist(''%s'',''var'') || isempty(%s)',s,s))
        assignin('caller',s,val)
    end
end